Activation and transcriptional profile of monocytes and CD8+ T cells are altered in checkpoint inhibitor-related hepatitis

Autor: Cathrin Gudd, Robert D. Goldin, Rooshi Nathwani, You Yone, Charalambos G. Antoniades, James Larkin, A. Dhar, Sujit Mukherjee, Tong Liu, Evangelos Triantafyllou, Lewis Au, Benjamin Shum, Lucia A. Possamai, Samra Turajlic, David J. Pinato, Kevin J. Woollard, Naveenta Kumar, Mark Thursz, Martin Gore, Wafa Khamri
Přispěvatelé: Academy of Medical Sciences
Rok vydání: 2021
Předmět:
Zdroj: Journal of Hepatology. 75:177-189
ISSN: 0168-8278
DOI: 10.1016/j.jhep.2021.02.008
Popis: Background & Aims: Checkpoint inhibitor-related hepatitis (CPI-Hep) is an emerging clinical challenge. We aimed to gain insights into the immunopathology of CPI-Hep by comprehensively characterising myeloid and lymphoid subsets. Methods: CPI-treated patients with or without related hepatitis (CPI-Hep; n = 22 and CPI-noHep; n = 7) were recruited. Phenotypic and transcriptional profiling of peripheral immune subsets was performed and compared with 19 healthy controls (HCs). In vitro monocyte-derived macrophages (MoMFs) were assessed for activation and cytokine production. CD163, CCR2, CD68, CD3, CD8 and granzyme B expression was assessed using immunohistochemistry/immunofluorescence (n = 4). Results: A significant total monocyte depletion was observed in CPI-Hep compared with HCs (p = 0.04), along with a proportionate increase in the classical monocyte population (p = 0.0002) and significant upregulation of CCR2, CD163 and downregulation of CCR7. Soluble CD163 levels were significantly elevated in CPI-Hep compared with HCs (p
Databáze: OpenAIRE